.route3{
  display: flex;
  height: 50px;
  align-items: center;
  padding-top:120px;

}
.route3 ul{
  width:150px;
  height: 50px;
  
  list-style: none;
}
.route3 ul li{
  width:150px;
  height: 50px;
  
  list-style: none;
}
.route3 .box{
  flex:1
}

.active{
  background-color: pink;
}